Players had to click either a stalagmite or stalactite, and the one clicked and the ones on either side would retract, of if already retracted, would pop out again. If a corner one was clicked, it would make the one on its side retract/pop out, as well as the one directly above/below it. After completing the puzzle, players would be able to access the Base Camp.

Trivia

After players completed the puzzle during the Mountain Expedition, a button would appear, which would cause the puzzle to be solved automatically if pressed. During the Great Snow Race, the button would appear by default, even if the puzzle was not previously solved.